Properties of the phonon gas in ultrathin membranes at low temperature

D. V. Anghel*, J. P. Pekola, M. M. Leivo, J. K. Suoknuuti, Matti Manninen

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

41 Citations (Scopus)


We analyze heat conduction by phonons in ultrathin membranes by constructing a new theoretical framework which implies a crossover from a bulk three-dimensional phonon distribution into a quasi-two-dimensional distribution when the temperature is lowered. We calculate the corresponding changes in the relevant thermodynamic quantities. At the end we make a comparison to experimental data.

Original languageEnglish
Pages (from-to)2958-2961
Number of pages4
JournalPhysical Review Letters
Issue number14
Publication statusPublished - 5 Oct 1998
MoE publication typeA1 Journal article-refereed


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